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socket_test_util.cc
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socket_test_util.cc
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/socket/socket_test_util.h"
#include <algorithm>
#include <vector>
#include "base/basictypes.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/compiler_specific.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "base/time/time.h"
#include "net/base/address_family.h"
#include "net/base/address_list.h"
#include "net/base/auth.h"
#include "net/base/load_timing_info.h"
#include "net/http/http_network_session.h"
#include "net/http/http_request_headers.h"
#include "net/http/http_response_headers.h"
#include "net/socket/client_socket_pool_histograms.h"
#include "net/socket/socket.h"
#include "net/ssl/ssl_cert_request_info.h"
#include "net/ssl/ssl_info.h"
#include "testing/gtest/include/gtest/gtest.h"
// Socket events are easier to debug if you log individual reads and writes.
// Enable these if locally debugging, but they are too noisy for the waterfall.
#if 0
#define NET_TRACE(level, s) DLOG(level) << s << __FUNCTION__ << "() "
#else
#define NET_TRACE(level, s) EAT_STREAM_PARAMETERS
#endif
namespace net {
namespace {
inline char AsciifyHigh(char x) {
char nybble = static_cast<char>((x >> 4) & 0x0F);
return nybble + ((nybble < 0x0A) ? '0' : 'A' - 10);
}
inline char AsciifyLow(char x) {
char nybble = static_cast<char>((x >> 0) & 0x0F);
return nybble + ((nybble < 0x0A) ? '0' : 'A' - 10);
}
inline char Asciify(char x) {
if ((x < 0) || !isprint(x))
return '.';
return x;
}
void DumpData(const char* data, int data_len) {
if (logging::LOG_INFO < logging::GetMinLogLevel())
return;
DVLOG(1) << "Length: " << data_len;
const char* pfx = "Data: ";
if (!data || (data_len <= 0)) {
DVLOG(1) << pfx << "<None>";
} else {
int i;
for (i = 0; i <= (data_len - 4); i += 4) {
DVLOG(1) << pfx
<< AsciifyHigh(data[i + 0]) << AsciifyLow(data[i + 0])
<< AsciifyHigh(data[i + 1]) << AsciifyLow(data[i + 1])
<< AsciifyHigh(data[i + 2]) << AsciifyLow(data[i + 2])
<< AsciifyHigh(data[i + 3]) << AsciifyLow(data[i + 3])
<< " '"
<< Asciify(data[i + 0])
<< Asciify(data[i + 1])
<< Asciify(data[i + 2])
<< Asciify(data[i + 3])
<< "'";
pfx = " ";
}
// Take care of any 'trailing' bytes, if data_len was not a multiple of 4.
switch (data_len - i) {
case 3:
DVLOG(1) << pfx
<< AsciifyHigh(data[i + 0]) << AsciifyLow(data[i + 0])
<< AsciifyHigh(data[i + 1]) << AsciifyLow(data[i + 1])
<< AsciifyHigh(data[i + 2]) << AsciifyLow(data[i + 2])
<< " '"
<< Asciify(data[i + 0])
<< Asciify(data[i + 1])
<< Asciify(data[i + 2])
<< " '";
break;
case 2:
DVLOG(1) << pfx
<< AsciifyHigh(data[i + 0]) << AsciifyLow(data[i + 0])
<< AsciifyHigh(data[i + 1]) << AsciifyLow(data[i + 1])
<< " '"
<< Asciify(data[i + 0])
<< Asciify(data[i + 1])
<< " '";
break;
case 1:
DVLOG(1) << pfx
<< AsciifyHigh(data[i + 0]) << AsciifyLow(data[i + 0])
<< " '"
<< Asciify(data[i + 0])
<< " '";
break;
}
}
}
template <MockReadWriteType type>
void DumpMockReadWrite(const MockReadWrite<type>& r) {
if (logging::LOG_INFO < logging::GetMinLogLevel())
return;
DVLOG(1) << "Async: " << (r.mode == ASYNC)
<< "\nResult: " << r.result;
DumpData(r.data, r.data_len);
const char* stop = (r.sequence_number & MockRead::STOPLOOP) ? " (STOP)" : "";
DVLOG(1) << "Stage: " << (r.sequence_number & ~MockRead::STOPLOOP) << stop
<< "\nTime: " << r.time_stamp.ToInternalValue();
}
} // namespace
MockConnect::MockConnect() : mode(ASYNC), result(OK) {
IPAddressNumber ip;
CHECK(ParseIPLiteralToNumber("192.0.2.33", &ip));
peer_addr = IPEndPoint(ip, 0);
}
MockConnect::MockConnect(IoMode io_mode, int r) : mode(io_mode), result(r) {
IPAddressNumber ip;
CHECK(ParseIPLiteralToNumber("192.0.2.33", &ip));
peer_addr = IPEndPoint(ip, 0);
}
MockConnect::MockConnect(IoMode io_mode, int r, IPEndPoint addr) :
mode(io_mode),
result(r),
peer_addr(addr) {
}
MockConnect::~MockConnect() {}
StaticSocketDataProvider::StaticSocketDataProvider()
: reads_(NULL),
read_index_(0),
read_count_(0),
writes_(NULL),
write_index_(0),
write_count_(0) {
}
StaticSocketDataProvider::StaticSocketDataProvider(MockRead* reads,
size_t reads_count,
MockWrite* writes,
size_t writes_count)
: reads_(reads),
read_index_(0),
read_count_(reads_count),
writes_(writes),
write_index_(0),
write_count_(writes_count) {
}
StaticSocketDataProvider::~StaticSocketDataProvider() {}
const MockRead& StaticSocketDataProvider::PeekRead() const {
DCHECK(!at_read_eof());
return reads_[read_index_];
}
const MockWrite& StaticSocketDataProvider::PeekWrite() const {
DCHECK(!at_write_eof());
return writes_[write_index_];
}
const MockRead& StaticSocketDataProvider::PeekRead(size_t index) const {
DCHECK_LT(index, read_count_);
return reads_[index];
}
const MockWrite& StaticSocketDataProvider::PeekWrite(size_t index) const {
DCHECK_LT(index, write_count_);
return writes_[index];
}
MockRead StaticSocketDataProvider::GetNextRead() {
DCHECK(!at_read_eof());
reads_[read_index_].time_stamp = base::Time::Now();
return reads_[read_index_++];
}
MockWriteResult StaticSocketDataProvider::OnWrite(const std::string& data) {
if (!writes_) {
// Not using mock writes; succeed synchronously.
return MockWriteResult(SYNCHRONOUS, data.length());
}
DCHECK(!at_write_eof());
// Check that what we are writing matches the expectation.
// Then give the mocked return value.
MockWrite* w = &writes_[write_index_++];
w->time_stamp = base::Time::Now();
int result = w->result;
if (w->data) {
// Note - we can simulate a partial write here. If the expected data
// is a match, but shorter than the write actually written, that is legal.
// Example:
// Application writes "foobarbaz" (9 bytes)
// Expected write was "foo" (3 bytes)
// This is a success, and we return 3 to the application.
std::string expected_data(w->data, w->data_len);
EXPECT_GE(data.length(), expected_data.length());
std::string actual_data(data.substr(0, w->data_len));
EXPECT_EQ(expected_data, actual_data);
if (expected_data != actual_data)
return MockWriteResult(SYNCHRONOUS, ERR_UNEXPECTED);
if (result == OK)
result = w->data_len;
}
return MockWriteResult(w->mode, result);
}
void StaticSocketDataProvider::Reset() {
read_index_ = 0;
write_index_ = 0;
}
DynamicSocketDataProvider::DynamicSocketDataProvider()
: short_read_limit_(0),
allow_unconsumed_reads_(false) {
}
DynamicSocketDataProvider::~DynamicSocketDataProvider() {}
MockRead DynamicSocketDataProvider::GetNextRead() {
if (reads_.empty())
return MockRead(SYNCHRONOUS, ERR_UNEXPECTED);
MockRead result = reads_.front();
if (short_read_limit_ == 0 || result.data_len <= short_read_limit_) {
reads_.pop_front();
} else {
result.data_len = short_read_limit_;
reads_.front().data += result.data_len;
reads_.front().data_len -= result.data_len;
}
return result;
}
void DynamicSocketDataProvider::Reset() {
reads_.clear();
}
void DynamicSocketDataProvider::SimulateRead(const char* data,
const size_t length) {
if (!allow_unconsumed_reads_) {
EXPECT_TRUE(reads_.empty()) << "Unconsumed read: " << reads_.front().data;
}
reads_.push_back(MockRead(ASYNC, data, length));
}
SSLSocketDataProvider::SSLSocketDataProvider(IoMode mode, int result)
: connect(mode, result),
next_proto_status(SSLClientSocket::kNextProtoUnsupported),
was_npn_negotiated(false),
protocol_negotiated(kProtoUnknown),
client_cert_sent(false),
cert_request_info(NULL),
channel_id_sent(false) {
}
SSLSocketDataProvider::~SSLSocketDataProvider() {
}
void SSLSocketDataProvider::SetNextProto(NextProto proto) {
was_npn_negotiated = true;
next_proto_status = SSLClientSocket::kNextProtoNegotiated;
protocol_negotiated = proto;
next_proto = SSLClientSocket::NextProtoToString(proto);
}
DelayedSocketData::DelayedSocketData(
int write_delay, MockRead* reads, size_t reads_count,
MockWrite* writes, size_t writes_count)
: StaticSocketDataProvider(reads, reads_count, writes, writes_count),
write_delay_(write_delay),
read_in_progress_(false),
weak_factory_(this) {
DCHECK_GE(write_delay_, 0);
}
DelayedSocketData::DelayedSocketData(
const MockConnect& connect, int write_delay, MockRead* reads,
size_t reads_count, MockWrite* writes, size_t writes_count)
: StaticSocketDataProvider(reads, reads_count, writes, writes_count),
write_delay_(write_delay),
read_in_progress_(false),
weak_factory_(this) {
DCHECK_GE(write_delay_, 0);
set_connect_data(connect);
}
DelayedSocketData::~DelayedSocketData() {
}
void DelayedSocketData::ForceNextRead() {
DCHECK(read_in_progress_);
write_delay_ = 0;
CompleteRead();
}
MockRead DelayedSocketData::GetNextRead() {
MockRead out = MockRead(ASYNC, ERR_IO_PENDING);
if (write_delay_ <= 0)
out = StaticSocketDataProvider::GetNextRead();
read_in_progress_ = (out.result == ERR_IO_PENDING);
return out;
}
MockWriteResult DelayedSocketData::OnWrite(const std::string& data) {
MockWriteResult rv = StaticSocketDataProvider::OnWrite(data);
// Now that our write has completed, we can allow reads to continue.
if (!--write_delay_ && read_in_progress_)
base::MessageLoop::current()->PostDelayedTask(
FROM_HERE,
base::Bind(&DelayedSocketData::CompleteRead,
weak_factory_.GetWeakPtr()),
base::TimeDelta::FromMilliseconds(100));
return rv;
}
void DelayedSocketData::Reset() {
set_socket(NULL);
read_in_progress_ = false;
weak_factory_.InvalidateWeakPtrs();
StaticSocketDataProvider::Reset();
}
void DelayedSocketData::CompleteRead() {
if (socket() && read_in_progress_)
socket()->OnReadComplete(GetNextRead());
}
OrderedSocketData::OrderedSocketData(
MockRead* reads, size_t reads_count, MockWrite* writes, size_t writes_count)
: StaticSocketDataProvider(reads, reads_count, writes, writes_count),
sequence_number_(0), loop_stop_stage_(0),
blocked_(false), weak_factory_(this) {
}
OrderedSocketData::OrderedSocketData(
const MockConnect& connect,
MockRead* reads, size_t reads_count,
MockWrite* writes, size_t writes_count)
: StaticSocketDataProvider(reads, reads_count, writes, writes_count),
sequence_number_(0), loop_stop_stage_(0),
blocked_(false), weak_factory_(this) {
set_connect_data(connect);
}
void OrderedSocketData::EndLoop() {
// If we've already stopped the loop, don't do it again until we've advanced
// to the next sequence_number.
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_ << ": EndLoop()";
if (loop_stop_stage_ > 0) {
const MockRead& next_read = StaticSocketDataProvider::PeekRead();
if ((next_read.sequence_number & ~MockRead::STOPLOOP) >
loop_stop_stage_) {
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_
<< ": Clearing stop index";
loop_stop_stage_ = 0;
} else {
return;
}
}
// Record the sequence_number at which we stopped the loop.
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_
<< ": Posting Quit at read " << read_index();
loop_stop_stage_ = sequence_number_;
}
MockRead OrderedSocketData::GetNextRead() {
weak_factory_.InvalidateWeakPtrs();
blocked_ = false;
const MockRead& next_read = StaticSocketDataProvider::PeekRead();
if (next_read.sequence_number & MockRead::STOPLOOP)
EndLoop();
if ((next_read.sequence_number & ~MockRead::STOPLOOP) <=
sequence_number_++) {
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_ - 1
<< ": Read " << read_index();
DumpMockReadWrite(next_read);
blocked_ = (next_read.result == ERR_IO_PENDING);
return StaticSocketDataProvider::GetNextRead();
}
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_ - 1
<< ": I/O Pending";
MockRead result = MockRead(ASYNC, ERR_IO_PENDING);
DumpMockReadWrite(result);
blocked_ = true;
return result;
}
MockWriteResult OrderedSocketData::OnWrite(const std::string& data) {
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_
<< ": Write " << write_index();
DumpMockReadWrite(PeekWrite());
++sequence_number_;
if (blocked_) {
// TODO(willchan): This 100ms delay seems to work around some weirdness. We
// should probably fix the weirdness. One example is in SpdyStream,
// DoSendRequest() will return ERR_IO_PENDING, and there's a race. If the
// SYN_REPLY causes OnResponseReceived() to get called before
// SpdyStream::ReadResponseHeaders() is called, we hit a NOTREACHED().
base::MessageLoop::current()->PostDelayedTask(
FROM_HERE,
base::Bind(&OrderedSocketData::CompleteRead,
weak_factory_.GetWeakPtr()),
base::TimeDelta::FromMilliseconds(100));
}
return StaticSocketDataProvider::OnWrite(data);
}
void OrderedSocketData::Reset() {
NET_TRACE(INFO, " *** ") << "Stage "
<< sequence_number_ << ": Reset()";
sequence_number_ = 0;
loop_stop_stage_ = 0;
set_socket(NULL);
weak_factory_.InvalidateWeakPtrs();
StaticSocketDataProvider::Reset();
}
void OrderedSocketData::CompleteRead() {
if (socket() && blocked_) {
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_;
socket()->OnReadComplete(GetNextRead());
}
}
OrderedSocketData::~OrderedSocketData() {}
DeterministicSocketData::DeterministicSocketData(MockRead* reads,
size_t reads_count, MockWrite* writes, size_t writes_count)
: StaticSocketDataProvider(reads, reads_count, writes, writes_count),
sequence_number_(0),
current_read_(),
current_write_(),
stopping_sequence_number_(0),
stopped_(false),
print_debug_(false),
is_running_(false) {
VerifyCorrectSequenceNumbers(reads, reads_count, writes, writes_count);
}
DeterministicSocketData::~DeterministicSocketData() {}
void DeterministicSocketData::Run() {
DCHECK(!is_running_);
is_running_ = true;
SetStopped(false);
int counter = 0;
// Continue to consume data until all data has run out, or the stopped_ flag
// has been set. Consuming data requires two separate operations -- running
// the tasks in the message loop, and explicitly invoking the read/write
// callbacks (simulating network I/O). We check our conditions between each,
// since they can change in either.
while ((!at_write_eof() || !at_read_eof()) && !stopped()) {
if (counter % 2 == 0)
base::RunLoop().RunUntilIdle();
if (counter % 2 == 1) {
InvokeCallbacks();
}
counter++;
}
// We're done consuming new data, but it is possible there are still some
// pending callbacks which we expect to complete before returning.
while (delegate_.get() &&
(delegate_->WritePending() || delegate_->ReadPending()) &&
!stopped()) {
InvokeCallbacks();
base::RunLoop().RunUntilIdle();
}
SetStopped(false);
is_running_ = false;
}
void DeterministicSocketData::RunFor(int steps) {
StopAfter(steps);
Run();
}
void DeterministicSocketData::SetStop(int seq) {
DCHECK_LT(sequence_number_, seq);
stopping_sequence_number_ = seq;
stopped_ = false;
}
void DeterministicSocketData::StopAfter(int seq) {
SetStop(sequence_number_ + seq);
}
MockRead DeterministicSocketData::GetNextRead() {
current_read_ = StaticSocketDataProvider::PeekRead();
// Synchronous read while stopped is an error
if (stopped() && current_read_.mode == SYNCHRONOUS) {
LOG(ERROR) << "Unable to perform synchronous IO while stopped";
return MockRead(SYNCHRONOUS, ERR_UNEXPECTED);
}
// Async read which will be called back in a future step.
if (sequence_number_ < current_read_.sequence_number) {
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_
<< ": I/O Pending";
MockRead result = MockRead(SYNCHRONOUS, ERR_IO_PENDING);
if (current_read_.mode == SYNCHRONOUS) {
LOG(ERROR) << "Unable to perform synchronous read: "
<< current_read_.sequence_number
<< " at stage: " << sequence_number_;
result = MockRead(SYNCHRONOUS, ERR_UNEXPECTED);
}
if (print_debug_)
DumpMockReadWrite(result);
return result;
}
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_
<< ": Read " << read_index();
if (print_debug_)
DumpMockReadWrite(current_read_);
// Increment the sequence number if IO is complete
if (current_read_.mode == SYNCHRONOUS)
NextStep();
DCHECK_NE(ERR_IO_PENDING, current_read_.result);
StaticSocketDataProvider::GetNextRead();
return current_read_;
}
MockWriteResult DeterministicSocketData::OnWrite(const std::string& data) {
const MockWrite& next_write = StaticSocketDataProvider::PeekWrite();
current_write_ = next_write;
// Synchronous write while stopped is an error
if (stopped() && next_write.mode == SYNCHRONOUS) {
LOG(ERROR) << "Unable to perform synchronous IO while stopped";
return MockWriteResult(SYNCHRONOUS, ERR_UNEXPECTED);
}
// Async write which will be called back in a future step.
if (sequence_number_ < next_write.sequence_number) {
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_
<< ": I/O Pending";
if (next_write.mode == SYNCHRONOUS) {
LOG(ERROR) << "Unable to perform synchronous write: "
<< next_write.sequence_number << " at stage: " << sequence_number_;
return MockWriteResult(SYNCHRONOUS, ERR_UNEXPECTED);
}
} else {
NET_TRACE(INFO, " *** ") << "Stage " << sequence_number_
<< ": Write " << write_index();
}
if (print_debug_)
DumpMockReadWrite(next_write);
// Move to the next step if I/O is synchronous, since the operation will
// complete when this method returns.
if (next_write.mode == SYNCHRONOUS)
NextStep();
// This is either a sync write for this step, or an async write.
return StaticSocketDataProvider::OnWrite(data);
}
void DeterministicSocketData::Reset() {
NET_TRACE(INFO, " *** ") << "Stage "
<< sequence_number_ << ": Reset()";
sequence_number_ = 0;
StaticSocketDataProvider::Reset();
NOTREACHED();
}
void DeterministicSocketData::InvokeCallbacks() {
if (delegate_.get() && delegate_->WritePending() &&
(current_write().sequence_number == sequence_number())) {
NextStep();
delegate_->CompleteWrite();
return;
}
if (delegate_.get() && delegate_->ReadPending() &&
(current_read().sequence_number == sequence_number())) {
NextStep();
delegate_->CompleteRead();
return;
}
}
void DeterministicSocketData::NextStep() {
// Invariant: Can never move *past* the stopping step.
DCHECK_LT(sequence_number_, stopping_sequence_number_);
sequence_number_++;
if (sequence_number_ == stopping_sequence_number_)
SetStopped(true);
}
void DeterministicSocketData::VerifyCorrectSequenceNumbers(
MockRead* reads, size_t reads_count,
MockWrite* writes, size_t writes_count) {
size_t read = 0;
size_t write = 0;
int expected = 0;
while (read < reads_count || write < writes_count) {
// Check to see that we have a read or write at the expected
// state.
if (read < reads_count && reads[read].sequence_number == expected) {
++read;
++expected;
continue;
}
if (write < writes_count && writes[write].sequence_number == expected) {
++write;
++expected;
continue;
}
NOTREACHED() << "Missing sequence number: " << expected;
return;
}
DCHECK_EQ(read, reads_count);
DCHECK_EQ(write, writes_count);
}
MockClientSocketFactory::MockClientSocketFactory() {}
MockClientSocketFactory::~MockClientSocketFactory() {}
void MockClientSocketFactory::AddSocketDataProvider(
SocketDataProvider* data) {
mock_data_.Add(data);
}
void MockClientSocketFactory::AddSSLSocketDataProvider(
SSLSocketDataProvider* data) {
mock_ssl_data_.Add(data);
}
void MockClientSocketFactory::ResetNextMockIndexes() {
mock_data_.ResetNextIndex();
mock_ssl_data_.ResetNextIndex();
}
scoped_ptr<DatagramClientSocket>
MockClientSocketFactory::CreateDatagramClientSocket(
DatagramSocket::BindType bind_type,
const RandIntCallback& rand_int_cb,
net::NetLog* net_log,
const net::NetLog::Source& source) {
SocketDataProvider* data_provider = mock_data_.GetNext();
scoped_ptr<MockUDPClientSocket> socket(
new MockUDPClientSocket(data_provider, net_log));
data_provider->set_socket(socket.get());
return socket.PassAs<DatagramClientSocket>();
}
scoped_ptr<StreamSocket> MockClientSocketFactory::CreateTransportClientSocket(
const AddressList& addresses,
net::NetLog* net_log,
const net::NetLog::Source& source) {
SocketDataProvider* data_provider = mock_data_.GetNext();
scoped_ptr<MockTCPClientSocket> socket(
new MockTCPClientSocket(addresses, net_log, data_provider));
data_provider->set_socket(socket.get());
return socket.PassAs<StreamSocket>();
}
scoped_ptr<SSLClientSocket> MockClientSocketFactory::CreateSSLClientSocket(
scoped_ptr<ClientSocketHandle> transport_socket,
const HostPortPair& host_and_port,
const SSLConfig& ssl_config,
const SSLClientSocketContext& context) {
return scoped_ptr<SSLClientSocket>(
new MockSSLClientSocket(transport_socket.Pass(),
host_and_port, ssl_config,
mock_ssl_data_.GetNext()));
}
void MockClientSocketFactory::ClearSSLSessionCache() {
}
const char MockClientSocket::kTlsUnique[] = "MOCK_TLSUNIQ";
MockClientSocket::MockClientSocket(const BoundNetLog& net_log)
: connected_(false),
net_log_(net_log),
weak_factory_(this) {
IPAddressNumber ip;
CHECK(ParseIPLiteralToNumber("192.0.2.33", &ip));
peer_addr_ = IPEndPoint(ip, 0);
}
bool MockClientSocket::SetReceiveBufferSize(int32 size) {
return true;
}
bool MockClientSocket::SetSendBufferSize(int32 size) {
return true;
}
void MockClientSocket::Disconnect() {
connected_ = false;
}
bool MockClientSocket::IsConnected() const {
return connected_;
}
bool MockClientSocket::IsConnectedAndIdle() const {
return connected_;
}
int MockClientSocket::GetPeerAddress(IPEndPoint* address) const {
if (!IsConnected())
return ERR_SOCKET_NOT_CONNECTED;
*address = peer_addr_;
return OK;
}
int MockClientSocket::GetLocalAddress(IPEndPoint* address) const {
IPAddressNumber ip;
bool rv = ParseIPLiteralToNumber("192.0.2.33", &ip);
CHECK(rv);
*address = IPEndPoint(ip, 123);
return OK;
}
const BoundNetLog& MockClientSocket::NetLog() const {
return net_log_;
}
void MockClientSocket::GetSSLCertRequestInfo(
SSLCertRequestInfo* cert_request_info) {
}
int MockClientSocket::ExportKeyingMaterial(const base::StringPiece& label,
bool has_context,
const base::StringPiece& context,
unsigned char* out,
unsigned int outlen) {
memset(out, 'A', outlen);
return OK;
}
int MockClientSocket::GetTLSUniqueChannelBinding(std::string* out) {
out->assign(MockClientSocket::kTlsUnique);
return OK;
}
ServerBoundCertService* MockClientSocket::GetServerBoundCertService() const {
NOTREACHED();
return NULL;
}
SSLClientSocket::NextProtoStatus
MockClientSocket::GetNextProto(std::string* proto, std::string* server_protos) {
proto->clear();
server_protos->clear();
return SSLClientSocket::kNextProtoUnsupported;
}
MockClientSocket::~MockClientSocket() {}
void MockClientSocket::RunCallbackAsync(const CompletionCallback& callback,
int result) {
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&MockClientSocket::RunCallback,
weak_factory_.GetWeakPtr(),
callback,
result));
}
void MockClientSocket::RunCallback(const net::CompletionCallback& callback,
int result) {
if (!callback.is_null())
callback.Run(result);
}
MockTCPClientSocket::MockTCPClientSocket(const AddressList& addresses,
net::NetLog* net_log,
SocketDataProvider* data)
: MockClientSocket(BoundNetLog::Make(net_log, net::NetLog::SOURCE_NONE)),
addresses_(addresses),
data_(data),
read_offset_(0),
read_data_(SYNCHRONOUS, ERR_UNEXPECTED),
need_read_data_(true),
peer_closed_connection_(false),
pending_buf_(NULL),
pending_buf_len_(0),
was_used_to_convey_data_(false) {
DCHECK(data_);
peer_addr_ = data->connect_data().peer_addr;
data_->Reset();
}
MockTCPClientSocket::~MockTCPClientSocket() {}
int MockTCPClientSocket::Read(IOBuffer* buf, int buf_len,
const CompletionCallback& callback) {
if (!connected_)
return ERR_UNEXPECTED;
// If the buffer is already in use, a read is already in progress!
DCHECK(pending_buf_ == NULL);
// Store our async IO data.
pending_buf_ = buf;
pending_buf_len_ = buf_len;
pending_callback_ = callback;
if (need_read_data_) {
read_data_ = data_->GetNextRead();
if (read_data_.result == ERR_CONNECTION_CLOSED) {
// This MockRead is just a marker to instruct us to set
// peer_closed_connection_.
peer_closed_connection_ = true;
}
if (read_data_.result == ERR_TEST_PEER_CLOSE_AFTER_NEXT_MOCK_READ) {
// This MockRead is just a marker to instruct us to set
// peer_closed_connection_. Skip it and get the next one.
read_data_ = data_->GetNextRead();
peer_closed_connection_ = true;
}
// ERR_IO_PENDING means that the SocketDataProvider is taking responsibility
// to complete the async IO manually later (via OnReadComplete).
if (read_data_.result == ERR_IO_PENDING) {
// We need to be using async IO in this case.
DCHECK(!callback.is_null());
return ERR_IO_PENDING;
}
need_read_data_ = false;
}
return CompleteRead();
}
int MockTCPClientSocket::Write(IOBuffer* buf, int buf_len,
const CompletionCallback& callback) {
DCHECK(buf);
DCHECK_GT(buf_len, 0);
if (!connected_)
return ERR_UNEXPECTED;
std::string data(buf->data(), buf_len);
MockWriteResult write_result = data_->OnWrite(data);
was_used_to_convey_data_ = true;
if (write_result.mode == ASYNC) {
RunCallbackAsync(callback, write_result.result);
return ERR_IO_PENDING;
}
return write_result.result;
}
int MockTCPClientSocket::Connect(const CompletionCallback& callback) {
if (connected_)
return OK;
connected_ = true;
peer_closed_connection_ = false;
if (data_->connect_data().mode == ASYNC) {
if (data_->connect_data().result == ERR_IO_PENDING)
pending_callback_ = callback;
else
RunCallbackAsync(callback, data_->connect_data().result);
return ERR_IO_PENDING;
}
return data_->connect_data().result;
}
void MockTCPClientSocket::Disconnect() {
MockClientSocket::Disconnect();
pending_callback_.Reset();
}
bool MockTCPClientSocket::IsConnected() const {
return connected_ && !peer_closed_connection_;
}
bool MockTCPClientSocket::IsConnectedAndIdle() const {
return IsConnected();
}
int MockTCPClientSocket::GetPeerAddress(IPEndPoint* address) const {
if (addresses_.empty())
return MockClientSocket::GetPeerAddress(address);
*address = addresses_[0];
return OK;
}
bool MockTCPClientSocket::WasEverUsed() const {
return was_used_to_convey_data_;
}
bool MockTCPClientSocket::UsingTCPFastOpen() const {
return false;
}
bool MockTCPClientSocket::WasNpnNegotiated() const {
return false;
}
bool MockTCPClientSocket::GetSSLInfo(SSLInfo* ssl_info) {
return false;
}
void MockTCPClientSocket::OnReadComplete(const MockRead& data) {
// There must be a read pending.
DCHECK(pending_buf_);
// You can't complete a read with another ERR_IO_PENDING status code.
DCHECK_NE(ERR_IO_PENDING, data.result);
// Since we've been waiting for data, need_read_data_ should be true.
DCHECK(need_read_data_);
read_data_ = data;
need_read_data_ = false;
// The caller is simulating that this IO completes right now. Don't
// let CompleteRead() schedule a callback.
read_data_.mode = SYNCHRONOUS;
CompletionCallback callback = pending_callback_;
int rv = CompleteRead();
RunCallback(callback, rv);
}
void MockTCPClientSocket::OnConnectComplete(const MockConnect& data) {
CompletionCallback callback = pending_callback_;
RunCallback(callback, data.result);
}
int MockTCPClientSocket::CompleteRead() {
DCHECK(pending_buf_);
DCHECK(pending_buf_len_ > 0);
was_used_to_convey_data_ = true;
// Save the pending async IO data and reset our |pending_| state.
scoped_refptr<IOBuffer> buf = pending_buf_;
int buf_len = pending_buf_len_;
CompletionCallback callback = pending_callback_;
pending_buf_ = NULL;
pending_buf_len_ = 0;
pending_callback_.Reset();
int result = read_data_.result;
DCHECK(result != ERR_IO_PENDING);
if (read_data_.data) {
if (read_data_.data_len - read_offset_ > 0) {
result = std::min(buf_len, read_data_.data_len - read_offset_);
memcpy(buf->data(), read_data_.data + read_offset_, result);
read_offset_ += result;
if (read_offset_ == read_data_.data_len) {
need_read_data_ = true;
read_offset_ = 0;
}
} else {
result = 0; // EOF
}
}
if (read_data_.mode == ASYNC) {
DCHECK(!callback.is_null());
RunCallbackAsync(callback, result);
return ERR_IO_PENDING;
}
return result;
}
DeterministicSocketHelper::DeterministicSocketHelper(
net::NetLog* net_log,
DeterministicSocketData* data)
: write_pending_(false),
write_result_(0),
read_data_(),
read_buf_(NULL),
read_buf_len_(0),
read_pending_(false),